148 entries under dull topic. ×
| quiet(adjective, easy, slow, heavy) | |
| supine(adjective, quiet, easy, slow) | |
| bored(adjective, beat, weary, tired) | |
| dead(adjective, beat, moderate, low) | |
| heavy(adjective, quiet, easy, slow) | |
| hypnotic(adjective, tired, inactivity, awareness) | |
| languid(adjective, slow, careless, relaxed) | |
| languorous(adjective, slow, careless, relaxed) | |
| lazy(adjective, slow, relaxed, deliberate) | |
| idle(adjective, quiet, flat, careless) | |
| sleeping(adjective, tired) | |
| debilitated(adjective, stupid, idle, weary) | |
| out(adjective, quiet, informal, cold) | |
| passive(adjective, quiet, careless, heavy) | |
| yawning(adjective, tired) | |
| indolent(adjective, quiet, easy, careless) | |
| lackadaisical(adjective, quiet, easy, slow) | |
| limp(adjective, slow, relaxed, still) | |
| motionless(adjective, quiet, flat, indifferent) | |
| out of it(expression, adjective, idiom, quiet) |
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| APA | Smart Define. (2016). sleepy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, sleepy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>. |
| MLA | Smart Define. "sleepy thesaurus" 18 February 2016. Web. 27 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms> |